Home / 11,869,622.40-17,804,433.60-8,279,443.20

Finding the Fourth Proportional to 11,869,622.40, 17,804,433.60 and 8,279,443.20

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Solution

The fourth proportional to 11,869,622.40, 17,804,433.60 and 8,279,443.20 is: 12,419,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869,622.40 : 17,804,433.60 = 8,279,443.20 : x
  2. Step 2: Convert to fraction form
    11,869,622.40/17,804,433.60 = 8,279,443.20/x
  3. Step 3: Cross multiply
    11,869,622.40x = 17,804,433.60 × 8,279,443.20
  4. Step 4: Simplify right side
    11,869,622.40x = 147,410,796,699,371.53
  5. Step 5: Solve for x
    x = 147,410,796,699,371.53/11,869,622.40
  6. Step 6: Final answer
    x = 12,419,164.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.